Quote:
Originally Posted by Price
In general, unless CEL is blinking and/or you get "reduced power.." message, you can continue driving. Having said that, replacing the cooler itself isn't that difficult. Vacuum lines and CBU cleaning is purely optional and imho a waste of $$. Again, imho. Some invest in detailing suspension parts, so what do I know....
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Good to know, thanks! Your X5 looks great, so keep wasting time detailing suspension parts!
Quote:
Originally Posted by Thecastle
EGR codes are not possible to diagnose without the BMW specific codes. Everything from exhaust pressure sensor failures, EGR valve failures, Cooler Failures, MAF failures, differential pressure failures, etc. could throw an SES for the EGR. I'd actually spend a little time looking at the code because the car throws codes for "EGR implausibility" but it can mean a range of things that a tune/bypass won't fix.
Assuming your EGR cooler is broken, the cheaper fix is to take the computer out and send it to JR tuning and have the EGR tuned out, then block it (unless you buy a salvage cooler). This will remove the SES, and improve fuel economy, and stop carbon build up. The race pipe above is fine, or use IAKNOWNS block plates, either will work. Frankly I'd be real surprised that a X5 needed a CBU cleaning at 80K, but hell mine had it done at 21K miles......
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Could you suggest a reasonably price scan tool that will show BMW specific codes? As I mentioned in my OP, I'm assuming the EGR cooler has a crack in it as there is soot near the common leak area.
I've seen the block off plates but I would prefer to do the Race Pipe. If the EGR Cooler is cracked might as well get the EGR valve out of there too. Cleaner setup & a little better air flow going into the motor.
If I decide to go with the Race Pipe I would be getting rid of the item that creates the carbon build up. So if I do Race pipe & tune, might as well do CBU cleaning too, maybe get a little more hp & mpg out of the X5 with all that done at once.